Laboratory Synthesis of Aspirin

What is the chemical name of aspirin?

• Acetic anhydride

• Ethyl acetate

• Salicylic acid

• Acetyl salicylic acid

Which reagent is used as a catalyst in the synthesis of aspirin?

• Water

• Ethyl acetate

• Sulfuric acid

• Acetic anhydride

What is the purpose of using a hot water bath in the reaction setup?

• To initiate crystallization

• To dissolve the reagents

• To provide even heating

• To cool the reaction

What technique is used to collect aspirin crystals after formation?

• Vacuum filtration

• Decantation

• Distillation

• Centrifugation

Why is recrystallization performed on the aspirin product?

• To reduce the mass

• To purify the product

• To change the color

• To increase the yield

What color change indicates the presence of a phenol ring when using iron(III) chloride?

• Green to red

• Purple to brown

• Brown to purple

• Red to green

What does it mean if the final aspirin product remains brown after the iron(III) chloride test?

• The product is impure

• The product is pure

• The starting material is present

• The test failed